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13136242 = 274321821
BaseRepresentation
bin110010000111…
…000101110010
3220201101112111
4302013011302
511330324432
61145315534
7216441040
oct62070562
926641474
1013136242
1174624a9
124495baa
13294c232
141a5d390
151247347
hexc87172

13136242 has 16 divisors (see below), whose sum is σ = 23044032. Its totient is φ = 5498640.

The previous prime is 13136231. The next prime is 13136251. The reversal of 13136242 is 24263131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10309 + ... + 11512.

It is an arithmetic number, because the mean of its divisors is an integer number (1440252).

Almost surely, 213136242 is an apocalyptic number.

13136242 is a deficient number, since it is larger than the sum of its proper divisors (9907790).

13136242 is a wasteful number, since it uses less digits than its factorization.

13136242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21873.

The product of its digits is 864, while the sum is 22.

The square root of 13136242 is about 3624.3953978560. The cubic root of 13136242 is about 235.9520274990.

Adding to 13136242 its reverse (24263131), we get a palindrome (37399373).

The spelling of 13136242 in words is "thirteen million, one hundred thirty-six thousand, two hundred forty-two".

Divisors: 1 2 7 14 43 86 301 602 21821 43642 152747 305494 938303 1876606 6568121 13136242